Production End-of-Line Test Bench GDI Injector

The Production Line GDI Injectors is an automatic system for calibration and test of high-pressure solenoid fuel injectors. The operation starts with loading the injector by means of a robot into a rotary dial. After reading the serial code (DMC), the injector enters the calibration unit. In the module the injectors are driven for about 150000 cycles in order to run-in and therefore stabilize the part.
The injector will be calibrated to a target flow, two additional flows can be rechecked at different test conditions. The next work process verifies the spray geometry of the injector by analyzing a shadowgraph taken image. Within the last performed work step the seat leakage will be tested with the patented liquid leak test.
Before unloading, the injector will be flushed out with air, so that the part will exit the production equipment in dry condition.
Finally, good parts will be placed into pallets, scraps will be sorted into the dedicated scrap rails.